Schedule Observations Schedule Spectroscopic Observations
NameP21EXHF → C/2023 H3
Type Comet (Jupiter Family)
Status Actively Following
Characterization Target
Source LOOK Project
Check Spectroscopic Feasibility Create LC Plot
Recent Blocks Scheduled
  • No blocks have been scheduled
Measurements
Show Measurements
Plot Visibility
Last Update: 2023-Jun-13 00:00
Orbital Elements
MPC Comet
Epoch of elements (MJD)
60200.0 Sept. 13, 2023
Orbital inclination in deg 2.48947
Longitude of Ascending Node (deg) 55.10015
Arg of perihelion (deg) 193.34033
Eccentricity 0.616228
Perihelion distance (AU) 5.2326463
Epoch of perihelion Feb. 19, 2024, 3:12 a.m.
Epoch of perihelion (MJD) 60359.13355
Total Magnitude (M1) 7.2
Slope Parameter (k1) 13.75
Physical Parameters
Phase Slope MPC Default
4.0
K1 autocmod 3.0f

3
13.75
M1 from 56 observations, assumed slope, autocmod 3.0f

3
7.2 +/- 0.5
Diameter Initial Diameter Guess using H=13.7 and albedo=0.14 (0.01 to 0.5)

MPC Default
6463.4 m +17720.0 / -3043.0
Follow-up Details
NEOCP digest2 score 35
Number of observations 56
Arc length (days) 89.00
Time since last observation (days) 396.82
Spectroscopy Details
Known Taxonomies None